Illustrative Math Alignment: Grade 7 Unit 4
Proportional Relationships and Percentages
Lesson 10: Tax and Tip
Use the following Media4Math resources with this Illustrative Math lesson.
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Math Example--Math of Money--Simple Interest--Example 4 | Math Example--Math of Money--Simple Interest--Example 4TopicThe Math of Money DescriptionAn investment of $999 earns 15% interest. Calculate the total amount of the investment after applying simple interest. Substitute P = 999 and r = 0.15 into the formula Total Amount = P * (1 + r), resulting in 999 * (1 + 0.15) = 999 * 1.15 = 1148.85. Therefore, the total amount is $1148.85. Understanding the math of money concepts is crucial for students, as it forms the basis for financial literacy. Examples like this showcase the practical application of simple interest formulas, helping learners to connect theoretical knowledge with real-world scenarios. |
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Math Example--Math of Money--Simple Interest--Example 5 | Math Example--Math of Money--Simple Interest--Example 5TopicThe Math of Money DescriptionAn investment of $99.99 earns 7% interest. Calculate the total amount of the investment after applying simple interest. Using the formula Total Amount = P * (1 + r) with P = 99.99 and r = 0.07, compute 99.99 * (1 + 0.07) = 99.99 * 1.07 ≅ 106.99. The total amount is approximately $106.99. Understanding the math of money concepts is crucial for students, as it forms the basis for financial literacy. Examples like this showcase the practical application of simple interest formulas, helping learners to connect theoretical knowledge with real-world scenarios. |
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Math Example--Math of Money--Simple Interest--Example 6 | Math Example--Math of Money--Simple Interest--Example 6TopicThe Math of Money DescriptionAn investment of $20,000 earns 5.5% interest. Calculate the total amount of the investment after applying simple interest. With P = 20000 and r = 0.055, use the formula Total Amount = P * (1 + r) to get 20000 * (1 + 0.055) = 20000 * 1.055 = 21,100. Therefore, the total amount is $21,100. Understanding the math of money concepts is crucial for students, as it forms the basis for financial literacy. Examples like this showcase the practical application of simple interest formulas, helping learners to connect theoretical knowledge with real-world scenarios. |
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Math Example--Math of Money--Simple Interest--Example 7 | Math Example--Math of Money--Simple Interest--Example 7TopicThe Math of Money DescriptionAn investment of $25,550 earns 10.75% interest. Calculate the total amount of the investment after applying simple interest. Substitute P = 25550 and r = 0.1075 in Total Amount = P * (1 + r). This gives 25550 * (1 + 0.1075) = 25550 * 1.1075 = 26,955.25. So, the total amount is $26,955.25. Understanding the math of money concepts is crucial for students, as it forms the basis for financial literacy. Examples like this showcase the practical application of simple interest formulas, helping learners to connect theoretical knowledge with real-world scenarios. |
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Math Example--Math of Money--Simple Interest--Example 8 | Math Example--Math of Money--Simple Interest--Example 8TopicThe Math of Money DescriptionAn investment of $999.99 earns 7.5% interest. Calculate the total amount of the investment after applying simple interest. Using P = 999.99 and r = 0.075 in Total Amount = P * (1 + r), calculate 999.99 * (1 + 0.075) = 999.99 * 1.075 = 1074.99. Thus, the total amount is approximately $1074.99. Understanding the math of money concepts is crucial for students, as it forms the basis for financial literacy. Examples like this showcase the practical application of simple interest formulas, helping learners to connect theoretical knowledge with real-world scenarios. |
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Math Example--Math of Money--Simple Interest--Example 9 | Math Example--Math of Money--Simple Interest--Example 9TopicThe Math of Money DescriptionAn investment of $25,125 earns 10.55% interest. Calculate the total amount of the investment after applying simple interest. Using P = 25125 and r = 0.1055 in Total Amount = P * (1 + r), compute 25125 * (1 + 0.1055) = 25125 * 1.1055 ≈ 27,775.69. The total amount is approximately $27,775.69. Understanding the math of money concepts is crucial for students, as it forms the basis for financial literacy. Examples like this showcase the practical application of simple interest formulas, helping learners to connect theoretical knowledge with real-world scenarios. |
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Math Example--Percents--Percent Change--Example 1 | Math Example--Percents--Percent Change--Example 1
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 10 | Math Example--Percents--Percent Change--Example 10
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 2 | Math Example--Percents--Percent Change--Example 2
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 3 | Math Example--Percents--Percent Change--Example 3
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 4 | Math Example--Percents--Percent Change--Example 4
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 5 | Math Example--Percents--Percent Change--Example 5
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 6 | Math Example--Percents--Percent Change--Example 6
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 7 | Math Example--Percents--Percent Change--Example 7
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 8 | Math Example--Percents--Percent Change--Example 8
This is part of a collection of math examples that focus on percents. |
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Math Example--Percents--Percent Change--Example 9 | Math Example--Percents--Percent Change--Example 9
This is part of a collection of math examples that focus on percents. |
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Math in the News: Issue 11--Taxing Tobacco | Math in the News: Issue 11--Taxing Tobacco
5/30/11. In this issue we look at the subject of taxation of tobacco products. Many states are using such taxes to meet budget shortfalls. What are the unintended consequences of these taxes? This is part of the Math in the News collection. To see the complete collection, click on this link. Note: The download is a PPT file.Related ResourcesTo see resources related to this topic click on the Related Resources tab above. |
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Math in the News: Issue 112--Back-to-School Purchases | Math in the News: Issue 112--Back-to-School Purchases
September 2016. In this issue of Math in the News, we look at back-to-school purchases and the impact that different tax rates have on the total cost. This is part of the Math in the News collection. To see the complete collection, click on this link. Note: The download is a PPT file.Related ResourcesTo see resources related to this topic click on the Related Resources tab above. |
Data Analysis |
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Math in the News: Issue 5--Tax Day | Math in the News: Issue 5--Tax Day
4/18/11. In this issue we look at income taxes. We analyze who pays what proportion of income taxes based on income level. This is part of the Math in the News collection. To see the complete collection, click on this link. Note: The download is a PPT file.Related ResourcesTo see resources related to this topic click on the Related Resources tab above. |
Data Analysis |
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Video Transcript: Percents: Calculating Tax | Video Transcript: Percents: Calculating Tax
This is the transcript that goes with the video segment entitled Video: Percents: Calculating Tax. This is part of a collection of video transcripts for the video tutorial series on Percents. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript LibraryTo see the complete collection of video transcriptsy, click on this link. Video LibraryTo see the complete collection of videos in the Video Library, click on this link. |
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Video Transcript: Percents: Percent Decrease | Video Transcript: Percents: Percent Decrease
This is the transcript that goes with the video segment entitled Video: Percents: Percent Decrease. This is part of a collection of video transcripts for the video tutorial series on Percents. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript LibraryTo see the complete collection of video transcriptsy, click on this link. Video LibraryTo see the complete collection of videos in the Video Library, click on this link. |
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Video Transcript: Percents: Percent Increase | Video Transcript: Percents: Percent Increase
This is the transcript that goes with the video segment entitled Video: Percents: Percent Increase. This is part of a collection of video transcripts for the video tutorial series on Percents. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript LibraryTo see the complete collection of video transcriptsy, click on this link. Video LibraryTo see the complete collection of videos in the Video Library, click on this link. |
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Video Tutorial: Percents, Video 9 | Video Tutorial: Percents: Percent Increase
This video is part of a series of videos that cover the topic of percents. This includes the definition of a percent, percent operations, and applications of percents. Each video includes real-world examples of using percents to solve specific problems. —CLICK ON PREVIEW TO VIEW THE VIDEO TUTORIAL— To see the complete collection of video tutorials on percents, click on this link.The following section provides background information on percents. Use this material to supplement the video series. You can also use the videos and this background material to fully review the topic of percents. What Are Percents?Percents are a type of fraction. A fraction is part of a whole. |
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Video Tutorial: Percents, Video 10 | Video Tutorial: Percents: Percent Decrease
This video is part of a series of videos that cover the topic of percents. This includes the definition of a percent, percent operations, and applications of percents. Each video includes real-world examples of using percents to solve specific problems. —CLICK ON PREVIEW TO VIEW THE VIDEO TUTORIAL— To see the complete collection of video tutorials on percents, click on this link.The following section provides background information on percents. Use this material to supplement the video series. You can also use the videos and this background material to fully review the topic of percents. What Are Percents?Percents are a type of fraction. A fraction is part of a whole. |
Percents |
